answer:Queen and king size beds were uncommon back then. The biggest bed that was usually in a home was a double size bed. As far as I know, the term twin bed is actually from those times (in real life), when adult married couples often slept in separate beds. Twin beds meant two identical beds – headboards and all (which was normal for husband and wife). These days, twin bed simply means size of one bed. Many people confuse twin bed with single bed ..but there’s usually a slight difference among different single beds. As for baby making ..the couple usually pushed the two twin beds together.